From e4fd76c113e43aa0fa00cf05a14cb12db080ba78 Mon Sep 17 00:00:00 2001
From: Yuqian Yang <crupest@crupest.life>
Date: Fri, 28 Nov 2025 19:28:35 +0800
Subject: Impl cursor on sdl.

---
 include/cru/platform/gui/sdl/Cursor.h | 35 +++++++++++++++++++++++++++++++++++
 include/cru/platform/gui/sdl/Window.h |  2 ++
 2 files changed, 37 insertions(+)
 create mode 100644 include/cru/platform/gui/sdl/Cursor.h

(limited to 'include')

diff --git a/include/cru/platform/gui/sdl/Cursor.h b/include/cru/platform/gui/sdl/Cursor.h
new file mode 100644
index 00000000..2af99850
--- /dev/null
+++ b/include/cru/platform/gui/sdl/Cursor.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "Base.h"
+
+#include <cru/platform/gui/Cursor.h>
+
+#include <SDL3/SDL_mouse.h>
+
+namespace cru::platform::gui::sdl {
+class SdlCursor : public SdlResource, public virtual ICursor {
+ public:
+  static std::shared_ptr<SdlCursor> CreateSystem(SDL_SystemCursor cursor);
+
+  explicit SdlCursor(SDL_Cursor* cursor, bool auto_destroy = true);
+  ~SdlCursor();
+
+  SDL_Cursor* GetSdlCursor();
+
+ private:
+  SDL_Cursor* cursor_;
+  bool auto_destroy_;
+};
+
+struct SdlCursorManager : public SdlResource, public virtual ICursorManager {
+ public:
+  SdlCursorManager();
+
+  std::shared_ptr<ICursor> GetSystemCursor(SystemCursorType type) override;
+
+ private:
+  std::shared_ptr<SdlCursor> arrow_cursor_;
+  std::shared_ptr<SdlCursor> hand_cursor_;
+  std::shared_ptr<SdlCursor> ibeam_cursor_;
+};
+}  // namespace cru::platform::gui::sdl
diff --git a/include/cru/platform/gui/sdl/Window.h b/include/cru/platform/gui/sdl/Window.h
index 22b797b5..58dd9785 100644
--- a/include/cru/platform/gui/sdl/Window.h
+++ b/include/cru/platform/gui/sdl/Window.h
@@ -90,6 +90,7 @@ class SdlWindow : public SdlResource, public virtual INativeWindow {
   void DoUpdateParent();
   void DoUpdateStyleFlag();
   void DoUpdateTitle();
+  void DoUpdateCursor();
 
   bool HandleEvent(const SDL_Event* event);
 
@@ -102,5 +103,6 @@ class SdlWindow : public SdlResource, public virtual INativeWindow {
   EventHandlerRevokerGuard parent_create_guard_;
   WindowStyleFlag style_;
   std::string title_;
+  std::shared_ptr<ICursor> cursor_;
 };
 }  // namespace cru::platform::gui::sdl
-- 
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